TY  - SER
AU  - Keegan,William
TI  - The optimal foraging analysis of horticultural production
KW  - Ethnie
KW  - Machiguenga
KW  - Agriculture vivrière
KW  - Agriculture de subsistance
KW  - Siècle 20
KW  - Pérou
N1  - bibliogr. p. 105-107
ER  -